| Patents for C21D 9 - Heat treatment, e.g. annealing, hardening, quenching, tempering, adapted for particular articles; Furnaces therefor (30,082) |
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| 09/01/1994 | WO1994019499A1 Method for heat treatment and fixture therefore |
| 08/31/1994 | EP0612852A1 Process for manufacturing high-strength bainitic steel rails with excellent rolling-contact fatique resistance |
| 08/31/1994 | EP0612572A1 Method of making a mandrel comprising a drill section |
| 08/30/1994 | US5342700 Automobile tire reinforcement |
| 08/30/1994 | US5342457 Method for the production of a switch diamond |
| 08/24/1994 | EP0611480A1 Heat treatment process and soft magnetic alloys produced thereby. |
| 08/24/1994 | CN2175390Y Steel pusher machine for continuously heating furnace |
| 08/23/1994 | US5340418 Using electronic infrared heating |
| 08/23/1994 | US5340412 Method of fluorinated nitriding of austenitic stainless steel screw |
| 08/23/1994 | US5340091 Batch coil annealing furnace |
| 08/20/1994 | CA2089904A1 Method of making a mandrel comprising a drill section for a self-drilling bling rivet |
| 08/18/1994 | WO1994018808A1 Apparatus for and method of induction-hardening machine components |
| 08/18/1994 | WO1994018514A1 Heating furnace system and method for producing hot rolled workpieces |
| 08/17/1994 | EP0610460A1 Rail thermal treatment process |
| 08/16/1994 | US5338377 Ball-and-roller bearing |
| 08/16/1994 | US5338280 Annealing and tunnel furnace rolls |
| 08/16/1994 | US5338119 Longitudinal guide for longitudinal adjustment devices for vehicle seats |
| 08/11/1994 | DE4303884A1 A process for producing machine components, in particular rolling bearing elements |
| 08/10/1994 | EP0610135A1 Method for post weld heat treating a joint between two dissimilar alloyed steel workpieces |
| 08/10/1994 | EP0610028A2 Method and apparatus for continuous casting and hot-rolling |
| 08/10/1994 | EP0609649A1 Walking-beam furnace for the accelerated heating of billets or the like |
| 08/10/1994 | EP0609556A2 Method for producing low carbon-equivalent rolled steel shapes by controlled rolling |
| 08/10/1994 | EP0609492A1 Holder plate for the partial heat treatment of articles |
| 08/10/1994 | CN1090603A Automatic quenching machine for vehicle spring steel plate |
| 08/10/1994 | CA2114872A1 Method and apparatus for cooling workpieces |
| 08/09/1994 | US5336344 Solution heat treating and aging using a high intensity electric heating system |
| 08/09/1994 | US5336338 Bearing components and process for producing same |
| 08/09/1994 | US5335897 Insulated furnace door system |
| 08/09/1994 | US5335713 Installation for the manufacture of hot-rolled steel strip |
| 08/09/1994 | CA1331295C Heat treatment method for strapping |
| 08/04/1994 | WO1994017215A1 Process for producing chromium-containing stainless steel strip with excellent toughness |
| 08/04/1994 | DE4319417C1 Insert-cast welding of fine-pearlitic rails |
| 08/03/1994 | EP0608543A1 Track bushing |
| 08/03/1994 | CN1090332A Heat treatment process for elastic steel strips |
| 08/02/1994 | US5334268 Method of producing high strength sucker rod coupling |
| 08/02/1994 | US5334125 Martensite roll |
| 08/02/1994 | US5333366 Installation for manufacture of hot rolled steel strips |
| 08/02/1994 | CA2033939C Induction heating assembly including an interposed closed conductive loop for suppression of intercoil coupling |
| 08/02/1994 | CA1331128C Continuous treatment of cold-rolled carbon high manganese steel |
| 07/28/1994 | DE4339204C1 Induction hardening process and equipment for universal joint crosspieces of carbon steel |
| 07/28/1994 | DE4311151C1 Grain-orientated electro-steel sheets with good properties |
| 07/27/1994 | EP0607907A1 Tempering apparatus for tempering a steel plate |
| 07/27/1994 | EP0553154B1 Process and device for affecting measurement and shape changes in the hardening of workpieces |
| 07/27/1994 | EP0493424B1 Processes and devices for the heat treatment of metal wires by bringing them around capstans |
| 07/27/1994 | CN1025534C Annular band-cutter weldering method and device thereof |
| 07/26/1994 | US5332867 Seal assembly for superconducting magnet tape ovens |
| 07/20/1994 | EP0606884A1 Grain-oriented electrical steel sheet with very low core loss and method of producing the same |
| 07/19/1994 | US5330594 Method of making cold formed high-strength steel parts |
| 07/19/1994 | US5330593 Process and apparatus for the inductive hardening of elongate workpieces |
| 07/19/1994 | US5329779 Method and apparatus for cooling workpieces |
| 07/13/1994 | EP0605529A1 Heat treatment of hardenable carbon steel pipes |
| 07/12/1994 | US5328158 Apparatus for continuous heat treating advancing continuously formed pipe in a restricted space |
| 07/07/1994 | WO1994015343A1 Manufacture of zirconium cladding tube with internal liner |
| 07/07/1994 | WO1994014985A1 Constrained hardening apparatus and heat treatment apparatus |
| 07/07/1994 | WO1994014575A1 Tool |
| 07/06/1994 | CN1088989A Laser treated IC engine cylinder body and cylinder sleeve |
| 06/29/1994 | EP0604072A1 Method and apparatus for the continuous field annealing of amorphous metal transformer cores |
| 06/29/1994 | EP0603749A1 Compound sleeve roll and method for producing same |
| 06/29/1994 | EP0603707A1 Apparatus for rolling wire |
| 06/29/1994 | CN1088711A Method and apparatus for the continuous field annealing of amorphous mamorphous metal transformer cores |
| 06/29/1994 | CN1088628A Shape steel material having high strength, high toughness and excellent fire resistance and process for producing rolled shape steel of said material |
| 06/29/1994 | CN1088621A Apparatus and method for cooling of metallic belt |
| 06/28/1994 | US5324912 Method and apparatus for manufacturing a texture drum |
| 06/28/1994 | US5324366 Holding first part in carburizing chamber to form desired case depth, moving through cooling chamber to equalizing chamber, removing when temperature has equalized, moving second piece from carburizing chamber to cooling chamber |
| 06/23/1994 | WO1994013843A1 Method of annealing steel strip in an annealing furnace without the formation of soot |
| 06/23/1994 | WO1994013842A1 Cold formed high-strength steel parts |
| 06/23/1994 | WO1994013841A1 Multipurpose atmosphere heat treatment apparatus |
| 06/23/1994 | DE4242540A1 Crankshaft remelt hardening |
| 06/22/1994 | EP0602729A1 Railway joint |
| 06/22/1994 | EP0308512B1 Apparatus for dull finish of roll with pulse laser |
| 06/21/1994 | US5323071 Semiconductor integrated circuit device having logic level conversion circuit |
| 06/18/1994 | CA2109854A1 High strength sucker rod coupling |
| 06/15/1994 | EP0601451A1 Process for hardness increasing and possibly for smoothing of work pieces and work pieces made by this process |
| 06/15/1994 | EP0601252A1 Hearth roller with suppressed heat crown |
| 06/15/1994 | CN1087954A Method for mfg. of water-hardened steel conveyer belt by using non-hardened and tempered belt steel |
| 06/15/1994 | CN1087953A Mfg. of double-screw bolt without decarburizing layer |
| 06/14/1994 | US5320329 Pressure pad for stably floating thin strip |
| 06/09/1994 | DE4320638A1 Rapid cooling of hot rolled material, esp. wire - uses air stream containing a water mist |
| 06/01/1994 | EP0599674A1 Lateral kiln charging device for products of the iron and steel industry |
| 06/01/1994 | CN2167098Y Process for continuous quenching with stepless adjusting power |
| 06/01/1994 | CN1024813C Direct-heating type continuous funnace for heat treatment |
| 06/01/1994 | CN1024812C Method and device for raising cold working wire specific elongation |
| 05/31/1994 | US5316269 Leaf spring constraining apparatus |
| 05/26/1994 | WO1994011537A1 Industrial furnace |
| 05/24/1994 | US5314169 Method and apparatus for heat treating elongate metallic products |
| 05/19/1994 | DE4323167C1 Producing steel hollow bodies by rolling - combined with austenitic heat treatment |
| 05/19/1994 | DE4316437A1 Sheet-metal cover strip - incorporating narrow longitudinal regions with lower strength and higher breaking strain than the rest of the strip |
| 05/19/1994 | DE4237991A1 Cooling hot-rolled products, rails - using appts. with carrier elements allowing rails to be suspended with their top downwards |
| 05/18/1994 | EP0597560A1 Device for the cooling of profils |
| 05/17/1994 | US5312531 Process for manufacturing galvanized steel sheet by nickel pre-coating method |
| 05/17/1994 | US5312493 Alloys of carbon silicon, manganese, phosphorous, sulfur, aluminum and titanium with ferrite and martensite structure |
| 05/11/1994 | EP0596133A1 Thin-sheet-clad steel sheet and method of production thereof |
| 05/11/1994 | EP0504352B1 Process and device for manufacturing a texturing roller |
| 05/11/1994 | DE4337374A1 Removal of sludge from molten salt quenching bath liq. - with a sludge receptacle provided with ceramic honeycomb filters |
| 05/11/1994 | DE4238758A1 Metal strip coil heat treatment - by rewinding coil within heat treatment furnace |
| 05/11/1994 | DE4237484A1 Surface remelting esp. of camshafts or crankshafts - by controlled preheating, esp. laser remelting and controlled cooling |
| 05/11/1994 | CN1086547A Heat treating process and apparatus for disc saw |
| 05/11/1994 | CN1086466A Method and apparatus for heat rolling of continouslly cast blocks into band or shaped steet |
| 05/11/1994 | CN1086465A Method and apparatus for heat rolling of continouslly casted thin block into wide steel ban |
| 05/10/1994 | US5310975 Method and apparatus for the continuous field annealing of amorphous metal transformer cores |